Unit installation

System Familiarization
974-24007001/4.1 1
1 SYSTEM FAMILIARIZATION
1.1 Overview
The SIMRAD FS 70 Series is a third wire trawl monitoring system
for pelagic and bottom fishing trawlers. The system provides real
time information from the trawl sonar head and the associated
sensors to the bridge, thus maximizing fishing efficiency and
reducing sea time.
The FS 70 vertical trawl sonar allows the operator to see the
complete net opening and operation by displaying individual fish
targets in the vertical plane, the fish school location, bottom/net
location and net geometry. In addition to the vertical monitoring,
the FS 70 also allows the operator to measure the spread of the
trawl door, view and skim banks to avoid reefs and locate boulders
on the ocean floor that may damage the trawl net.
The 200 kHz Echo Sounder capability ensures maximum control of
the foot rope during the tow. The active motion sensor for pitch and
roll comes as a standard feature.
The trawl system’s sensor module and addition of sensors from the
Simrad PI family allows the operator to monitor trawl depth, water
temperature and receive information from the catch sensors, the
doors spread sensors, the cod end depth sensor and from the rip or
bottom contact sensor.
The FS Trawl Sonar Series is a modular system. It is operated with
ease through direct access mouse and keyboard operated menus.
The major benefit of the third wire trawl sonar system is that it
prevents the loss of communication with the trawl instrumentation
as the vessel is changing course and or during heavy sea.